2189874054 has 16 divisors (see below), whose sum is σ = 4381021440. Its totient is φ = 729745800.

The previous prime is 2189874053. The next prime is 2189874061. The reversal of 2189874054 is 4504789812.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2189873994 and 2189874012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2189874053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29922 + ... + 72629.

It is an arithmetic number, because the mean of its divisors is an integer number (273813840).

Almost surely, 2^2189874054 is an apocalyptic number.

2189874054 is an abundant number, since it is smaller than the sum of its proper divisors (2191147386).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2189874054 is a wasteful number, since it uses less digits than its factorization.

2189874054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106115.

The product of its (nonzero) digits is 645120, while the sum is 48.

The square root of 2189874054 is about 46796.0901571916. The cubic root of 2189874054 is about 1298.5929656366.

The spelling of 2189874054 in words is "two billion, one hundred eighty-nine million, eight hundred seventy-four thousand, fifty-four".